硅基高交联磺化PS-DVB离子交换剂的研究  

Preparation of a Silica-based Sulfonated Hypercrosslinked Polystyrene- Divinylbenzene Strong Cation-exchanger

作　　者：张飞[1,2] 蔡大川[1] 郑家概[1] 潘灿盛[1] 曾志坚[3] 左雄军[3] 

机构地区：[1]中国广州分析测试中心广东省化学危害应急检测技术重点实验室,广东广州510070 [2]华南师范大学化学与环境学院,广东广州510006 [3]华南师范大学实验中心,广东广州510006

出　　处：《分析测试学报》2015年第11期1286-1290,共5页Journal of Instrumental Analysis

基　　金：广东省专业镇中小微企业服务平台建设项目(2013B091604003)

摘　　要：采用活化硅小球与双乙烯基封头剂反应制得乙烯基硅烷键合相,在过氧化苯甲酰诱发下,乙烯基硅烷键合相进一步与苯乙烯(PS)以及二乙烯基苯(DVB)混合单体共聚制得硅基PS-DVB,该硅基PS-DVB共聚物在冰水浴中用氯磺酸磺化制得一种硅基高交联磺化PS-DVB离子交换剂。用红外光谱表征磺化前后及经强碱处理过的离子交换剂,结果发现苯环特征吸收峰的相对强度无明显降低,表明该硅基离子交换剂具有很好的耐酸碱稳定性。用该离子交换剂分离碱性化合物,获得了较好的分离效果。Preparation of a silica-based sulfonated hypercrosslinked polystyrene- divinylbenzene strong cation-exchanger was reported. Silica beads of an average particle size of approximately 5 μm were first reacted with divinyltetramethyl disiloxane to prepare the vinylated silica phase. The vinylated silica phase was then copolymerized with a monomer mixture of styrene- divinylbenzene（ 2 ∶ 1）,and the hypercrosslinked polystyrene- divinylbenzene（ HCL PS- DVB） derivated silica phase was prepared. And at last,the HCL PS- DVB silica phase was sulfonated to prepare the cation-exchanger in an ice water bath. The strong cation-exchanger was characterized using infrared spectra. The cation-exchanger was proved to be stable in extreme acidic and in extreme basic solutions. The strong cation-exchanger was applied in the separation of basic organics with a good separation result.

关 键 词：苯乙烯-二乙烯基苯 包埋共聚 强阳离子交换剂 离子色谱 

分 类 号：O657.33[理学—分析化学]